what is the best way to get a girls number
Go up to them. Ask to play heads or tails. Say whoever has the biggest phone number gets to decide which side of the coin they want. Boom you've got yourself a number.
Ask for it nicely
say "i like you, give me your number, and you may get lucky because I might text you"
I think you're supposed to ask for it in a polite and preferably charming manner.
I'm a girl and if a guy came up to me and said do you have a phone I would answer yes and then they usually ask for my number. hope it helped